Dispositif amorçable introuvable
Solved
Hello,
I installed Ubuntu alongside Windows Vista on an old PC. It worked fine until I modified the partitions to keep only the one for Ubuntu (thus deleting Windows Vista).
Since then, I have the blocking message "No bootable device".
Have I messed everything up or is there a way to recover the situation?
Thank you in advance for your help.
François
I installed Ubuntu alongside Windows Vista on an old PC. It worked fine until I modified the partitions to keep only the one for Ubuntu (thus deleting Windows Vista).
Since then, I have the blocking message "No bootable device".
Have I messed everything up or is there a way to recover the situation?
Thank you in advance for your help.
François
6 answers
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Hello,
Yes, you can reinstall grub by following this very simple method
https://lecrabeinfo.net/reparer-restaurer-ou-reinstaller-grub-quand-linux-ne-demarre-plus.html#reparer-restaurer-ou-reinstaller-grub
--
Secure, save, hold, protect, master.
95% of computer problems are located between the keyboard and the chair. -
Thank you, I will take a look at that calmly tomorrow because I don't have exactly the same screens as on the link. Thank you for the promptness!
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Hello,
Let's first check the state of the disk partitions:
Boot a live session from your Ubuntu installation media, open the terminal, and provide the result of the following command (copy/paste)sudo fdisk -l
(letter L) -
Hello,
Here is what I get when executing the command (I hope it's not too catastrophic..., thanks for the help!):
lubuntu@lubuntu:~$ sudo fdisk -l
Disk /dev/loop0: 1.59 GiB, 1697615872 bytes, 3315656 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 232.91 GiB, 250059350016 bytes, 488397168 sectors
Disk model: WDC WD2500BEVS-2
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xa1c02292
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 488392064 488390017 232.9G 83 Linux
Disk /dev/sdb: 14.96 GiB, 16034824192 bytes, 31318016 sectors
Disk model: GOODRAM 16GB
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x008dbb62
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 2048 31318015 31315968 15G c W95 FAT32 (LBA)
Disk /dev/zram0: 745.66 MiB, 781864960 bytes, 190885 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/zram1: 745.66 MiB, 781864960 bytes, 190885 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes-
There is only one Linux partition occupying the entire disk. Your PC boots in BIOS mode, the first part of the tutorial indicated by Lulu69 is intended for PCs starting in UEFI, so not yours. However, the second part with boot-repair might do the trick.
There is one thing I don't understand: deleting the Windows partition should normally not affect the GRUB booting since it is placed in the MBR of the disk, so outside of any partition, the GRUB config files being located in the Linux partition, everything should be in place. I am very much afraid that the MBR of the disk is corrupted.
How did you go about deleting the Windows partition? -
@jns55So I followed the second part of the tutorial indicated by Lulu69 with boot-repair and now I no longer have "No bootable device", it stops at this:
PXE-E61: Media test failure, check cable
PXE-MOF: Exiting Broadcom PXE ROM.
And then nothing...
I deleted the Windows partition via the partition manager on Lubuntu... But I think I messed up, I tinkered too much... -
@Francois56Apparently the disk has a problem, probably with the MBR.
Try this:
From your installation media, launch GParted.
https://gparted.org/display-doc.php?name=help-manual&lang=en#gparted-create-partition-table
In the Devices menu, select your disk, then right-click: create a new partition table. Select a msdos type table and apply.
This will erase the entire disk, but with a bit of luck, the disk might be fixed.
Once that's done, reinstall Lubuntu using the whole disk (automatic installation).
Keep me updated.
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Hello,
And why not run the command in a live terminal
sudo grub-install /dev/sdb
Of course, the disks must be unmounted
Secure, save, hold, protect, control.
95% of computer problems are found between the keyboard and the chair. -
Good evening,
I indeed erased the disk via gparted and installed Xubuntu (it didn't work with Lubuntu...).
Everything is working now.
A big thank you for your advice!
